ul,li
{
    list-style:none;
    margin:0;
    padding:0;
    }
li
{
    background-color:#484891;
    float:left;
    color:White;
    padding:10px;
    margin-right:3px; 
    border: 1px solid white;   
    }
.tabin
{
    border:1px solid #6E6E6E;
    }
#firstDiv div
{
    clear:left;
    background-color:#F0FFF0;
    width:400px;
    height:200px;
    display:none;
    }
#firstDiv .contentin
{
    display:block;
    }
